The Global Digital Divide: No Profit From Developing Nation Users – Web companies that rely on advertising are enjoying some of their most vibrant growth in developing countries. But those are also the same places where it can be the most expensive to operate, since Web companies often need more servers to make content available to parts of the world with limited bandwidth. And in those countries, online display advertising is least likely to translate into results.

Last year, Veoh, a video-sharing site operated from San Diego, decided to block its service from users in Africa, Asia, Latin America and Eastern Europe, citing the dim prospects of making money and the high cost of delivering video there.

“I believe in free, open communications,” Dmitry Shapiro, the company’s chief executive, said. “But these people are so hungry for this content. They sit and they watch and watch and watch. The problem is they are eating up bandwidth, and it’s very difficult to derive revenue from it.”

Omegle: Talk to Strangers! – A social-networking site for people who are burned out on their friends and want to interact with people they do NOT know: "When you use Omegle, we pick another user at random and let you have a one-on-one chat with each other. Chats are completely anonymous, although there is nothing to stop you from revealing personal details if you would like."